Armor Emblem help

Have 3/4 of your team use Ward armor and have Hector keep Goad armor, this setup in particular helps you survive against blade tome mages while also giving you a bit of a boost in damage. 3 ward armors are enough to suffice, 4 is overkill and below 3 is not enough to help you survive.

Your team build should be;

Zephiel with Ward armor
Effie with Ward armor
Hector with Goad armor
Gwendolyn/Draug/Sheena with Ward armor.

Armor emblem is expensive to build, because all of your heroes MUST have Distant counter in order to offset their movement penalty. Have hector go with the usual build featuring vantage, Effie must keep her Wary fighter and the other two heroes needs to have Quick riposte, since this team is heavily based on "bait and kill" tactics. Zephiel you can swap out his Wary fighter for Quick riposte and I find this to be more successful. Effie can wield her standard Silver lance or Brave Lance. Gwendolyn, Draug and Sheena will need Killer weapons due to their low attack stat compared to the other three.

When talking about assists, pivot is not very good in an Armor Emblem team, Swap is much more powerful. Their special should be bonfire as they typically have very high defense and could give them a surprising amount of burst damage.